<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>test</title>
  <style>
    body>div{
        width: 1000px;
        border: 1px solid red;
        overflow: hidden;
    }
    .c1{
        width: 198px;
        height: 233px;
        float: left;
        margin-left: 10px;
        border: 1px solid green;
    }
    #d1{
        width: 800px;
        height: 500px;
        border: 1px solid blue;
        float: right;
    }
  </style>
</head>
<body>
<div>
  <div class="c1"></div>
  <div class="c1"></div>
    <div id="d1"></div>
</div>
</body>
/html>